Products
Linux kernel
Linux Kernel
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Tags
CVE-2021-47567 details
Published : May 24, 2024, 3:15 p.m.
Last Modified : May 24, 2024, 6:09 p.m.
Last Modified : May 24, 2024, 6:09 p.m.
Description
In the Linux kernel, the following vulnerability has been resolved: powerpc/32: Fix hardlockup on vmap stack overflow Since the commit c118c7303ad5 ("powerpc/32: Fix vmap stack - Do not activate MMU before reading task struct") a vmap stack overflow results in a hard lockup. This is because emergency_ctx is still addressed with its virtual address allthough data MMU is not active anymore at that time. Fix it by using a physical address instead.
CVSS Score
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
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Weakness
| Weakness | Name | Description |
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References
| URL | Source |
|---|---|
| https://git.kernel.org/stable/c/5bb60ea611db1e04814426ed4bd1c95d1487678e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
| https://git.kernel.org/stable/c/c4e3ff8b8b1d54f0c755670174c453b06e17114b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
| https://git.kernel.org/stable/c/dfe906da9a1abebdebe8b15bb3e66a2578f6c4c7 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
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